Can riparian eucalypts be used for hydroclimatic reconstruction? The case for Eucalyptus coolabah to define palaeo-flood events
J Gillen, JF Costelloe, KJ Allen, SJ Fallon, MC Peel, M Stewardson, R Nathan
Journal of Arid Environments | Elsevier | Published : 2021
In the Australian semi-arid–arid zone, hydrological records are typically only 40–60 years long, prohibiting an understanding of long-term hydrological variability. Kati-Thanda – Lake Eyre Basin (KT-LEB), is the fifth largest terminal lake in the world, experiences highly variable flows and supports myriad flora and fauna. The opportunistic and highly irregular growth of trees in KT-LEB means that tree-ring records have not been developed in the region. E. coolabah is a keystone species in the KT-LEB and can live for more than 300 years. In this study, we find that trees in the riparian zone exhibit larger and more diffuse vessels compared to trees on the flood plain. 14C dating indicates th..View full abstract
This study was supported by funding provided by the University of Melbourne. We thank Steven Stewart (CSIRO) for advice with mapping. Data for this project - including raw measurements for vessel properties - can be obtained by contacting the corresponding author.